How can i update the ListView

[anonymous_user_1fc95b09]

How can i update the ListView,i can’t find the idear for every where,thanks a lot!

[Everynone]

Create a widget blueprint that you want to populate the List View with and implement User Entry Object List interface. Add those widgets to the List View as normal.

[anonymous_user_1fc95b09]

thank you for answer,i can add widgets to the list view ,but i can’t update the items in the list,for example, i add a text in the list ,but i can’t change the text value in the list

[Everynone]

Never said it’s going to work well. I was secretly hoping it would work well for you!

It’s buggy as hell atm, see here:

How to use SetText with List View?

[anonymous_user_1fc95b09]

oh,This is indeed a major mistake, anyway, thank you for your answer.

[Everynone]

Have a look at Flemmard’s post in the link above, I think he cracked it.

[HMaier2161]

I know it has been years since this thread was opened, but here is a solution to updating a list view when an entry needs to change that works very well for me:

Just call the RegenerateAllEntries function which is defined in ListViewBase and inherited by ListView and all its children (CommonListView, EditorUtilityListView, TileView and TreeView)

[LootDrive]

Thanks for this, helped me fix an issue when trying to change existing list entries.

[letthemicefree (L_T_M_F)]

The only way that works for me in the current source build (5.5.0) is the Regenerate All Entries node, otherwise I have to start playing with annoying delays otherwise the GC doesn’t have time to release the widgets in my system. It would be useful to have a way to swap the order of the item easily.

[Michela (Michela Ledwidge)]

otherwise I have to start playing with annoying delays otherwise the GC doesn’t ?have time to release the widgets in my system.

Can you clarify how you used delay to work around this? I have to stick to release versions for this. Regenarate all nodes not working in 5.3 or 5.4 to refresh list items.

[johto760]

Quick-Start guide to List View widget

This post is intended to be a quick-start guide to get List View up and running with simple add, edit, and remove functionality. For more advanced stuff, you may have to find another forum post to help with that. None of this will be groundbreaking information, it’s mostly information that me, from 2 weeks ago, would’ve liked to have as a reference when first getting into all of this. This only applies to List View and Tile View I have not experimented with Tree View, but maybe I’ll try work…

Specifically:

It’s very important to only save the Object_Example variable and NOT the Structure_Example_Var variable.
If the list entry widget referenced the Structure_Example_Var as a separate variable, it won’t update values beyond the initialization unless we manually call Regenerate All Entries.

But as long as we bind the widget elements from the Object_Example variable, the widget will update automatically.

[Everynone]

@johto760

But as long as we bind the widget elements from the Object_Example variable, the widget will update automatically.

Polling variables is fine, but do note that function bindings execute every frame, non-stop, so that’d would undo a lot of optimisations a List View provides. This really is not a good suggestion, Epic guides advise against it, that’s for starters.